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ES8501555A1 - Disk drive alignment analyzer. - Google Patents

Disk drive alignment analyzer.

Info

Publication number
ES8501555A1
ES8501555A1 ES525645A ES525645A ES8501555A1 ES 8501555 A1 ES8501555 A1 ES 8501555A1 ES 525645 A ES525645 A ES 525645A ES 525645 A ES525645 A ES 525645A ES 8501555 A1 ES8501555 A1 ES 8501555A1
Authority
ES
Spain
Prior art keywords
alignment
disk drive
drive alignment
transducer head
alignment analyzer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES525645A
Other languages
Spanish (es)
Other versions
ES525645A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Verbatim Corp
Original Assignee
Verbatim Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Verbatim Corp filed Critical Verbatim Corp
Publication of ES8501555A1 publication Critical patent/ES8501555A1/en
Publication of ES525645A0 publication Critical patent/ES525645A0/en
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553—Details
    • G11B5/5534—Initialisation, calibration, e.g. cylinder "set-up"
    • G11B5/5543—Initialisation, calibration, e.g. cylinder "set-up" servo-format therefor

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)

Abstract

An alignment testing device comprising a magnetic media with data tracks in nonstandard locations with bidirectionally progressive degrees of misalignment for testing the alignment of the transducer head in a magnetic storage device such as a floppy disk drive. The alignment testing device allows the user to determine the boundaries of track alignments that the transducer head can read, and thereby determine any discrepancy between the heads actual alignment and correct alignment.
ES525645A 1983-04-07 1983-09-15 ALIGNMENT DISC FOR TRANSDUCER HEADS OF MAGNETIC MEDIA. Granted ES525645A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/482,906 US4562494A (en) 1983-04-07 1983-04-07 Disk drive alignment analyzer

Publications (2)

Publication Number Publication Date
ES8501555A1 true ES8501555A1 (en) 1984-12-01
ES525645A0 ES525645A0 (en) 1984-12-01

Family

ID=23917889

Family Applications (1)

Application Number Title Priority Date Filing Date
ES525645A Granted ES525645A0 (en) 1983-04-07 1983-09-15 ALIGNMENT DISC FOR TRANSDUCER HEADS OF MAGNETIC MEDIA.

Country Status (5)

Country Link
US (1) US4562494A (en)
EP (1) EP0121590A3 (en)
JP (1) JPS59186118A (en)
BR (1) BR8305208A (en)
ES (1) ES525645A0 (en)

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US4608618A (en) * 1984-10-25 1986-08-26 Verbatim Corporation Digital alignment diagnostic disk
JPS62175974A (en) * 1986-01-29 1987-08-01 Hitachi Ltd Adjusting method for magnetic head
US4992893A (en) * 1986-02-19 1991-02-12 Hitachi, Ltd. Alignment disk for magnetic disk driving apparatus and method and apparatus for verifying tracking error of the magnetic disk driving apparatus
US5383070A (en) * 1990-11-21 1995-01-17 Bond; Charles R. Method and device for measuring disk drive alignment
US5233487A (en) * 1991-06-27 1993-08-03 International Business Machines Corporation Functional measurement of data head misregistration
US5600505A (en) * 1994-06-10 1997-02-04 Exabyte Corporation Skew correction in a multi-track tape recorder/player
WO2000051125A1 (en) 1999-02-22 2000-08-31 Seagate Technology Llc Compensation for repeatable runout error
CN1357139A (en) 1999-05-07 2002-07-03 西加特技术有限责任公司 Repeatable runout compensatino using iterative learning control in disc storage system
JP2003505818A (en) 1999-07-23 2003-02-12 シーゲイト テクノロジー エルエルシー Reproducible run-out correction using a parameter-scheduled learning algorithm
US6952320B1 (en) 1999-12-16 2005-10-04 Seagate Technology Llc Virtual tracks for repeatable runout compensation
GB2413431B (en) * 2004-04-19 2006-06-14 Zoo Digital Group Plc Data processing system and method
US7493012B2 (en) * 2004-04-20 2009-02-17 Zootech Limited Compatibility testing
US10496548B2 (en) 2018-02-07 2019-12-03 Alibaba Group Holding Limited Method and system for user-space storage I/O stack with user-space flash translation layer
WO2019222958A1 (en) 2018-05-24 2019-11-28 Alibaba Group Holding Limited System and method for flash storage management using multiple open page stripes
CN111902804B (en) 2018-06-25 2024-03-01 阿里巴巴集团控股有限公司 System and method for managing resources of a storage device and quantifying I/O request costs
US10921992B2 (en) 2018-06-25 2021-02-16 Alibaba Group Holding Limited Method and system for data placement in a hard disk drive based on access frequency for improved IOPS and utilization efficiency
US10996886B2 (en) 2018-08-02 2021-05-04 Alibaba Group Holding Limited Method and system for facilitating atomicity and latency assurance on variable sized I/O
US11327929B2 (en) 2018-09-17 2022-05-10 Alibaba Group Holding Limited Method and system for reduced data movement compression using in-storage computing and a customized file system
US10977122B2 (en) 2018-12-31 2021-04-13 Alibaba Group Holding Limited System and method for facilitating differentiated error correction in high-density flash devices
US11061735B2 (en) 2019-01-02 2021-07-13 Alibaba Group Holding Limited System and method for offloading computation to storage nodes in distributed system
US11132291B2 (en) 2019-01-04 2021-09-28 Alibaba Group Holding Limited System and method of FPGA-executed flash translation layer in multiple solid state drives
US11200337B2 (en) 2019-02-11 2021-12-14 Alibaba Group Holding Limited System and method for user data isolation
US10860223B1 (en) 2019-07-18 2020-12-08 Alibaba Group Holding Limited Method and system for enhancing a distributed storage system by decoupling computation and network tasks
US11126561B2 (en) 2019-10-01 2021-09-21 Alibaba Group Holding Limited Method and system for organizing NAND blocks and placing data to facilitate high-throughput for random writes in a solid state drive
US11617282B2 (en) 2019-10-01 2023-03-28 Alibaba Group Holding Limited System and method for reshaping power budget of cabinet to facilitate improved deployment density of servers
US11449455B2 (en) 2020-01-15 2022-09-20 Alibaba Group Holding Limited Method and system for facilitating a high-capacity object storage system with configuration agility and mixed deployment flexibility
US10923156B1 (en) * 2020-02-19 2021-02-16 Alibaba Group Holding Limited Method and system for facilitating low-cost high-throughput storage for accessing large-size I/O blocks in a hard disk drive
US11150986B2 (en) 2020-02-26 2021-10-19 Alibaba Group Holding Limited Efficient compaction on log-structured distributed file system using erasure coding for resource consumption reduction
US11200114B2 (en) 2020-03-17 2021-12-14 Alibaba Group Holding Limited System and method for facilitating elastic error correction code in memory
US11281575B2 (en) 2020-05-11 2022-03-22 Alibaba Group Holding Limited Method and system for facilitating data placement and control of physical addresses with multi-queue I/O blocks
US11461262B2 (en) 2020-05-13 2022-10-04 Alibaba Group Holding Limited Method and system for facilitating a converged computation and storage node in a distributed storage system
US11494115B2 (en) 2020-05-13 2022-11-08 Alibaba Group Holding Limited System method for facilitating memory media as file storage device based on real-time hashing by performing integrity check with a cyclical redundancy check (CRC)
US11218165B2 (en) 2020-05-15 2022-01-04 Alibaba Group Holding Limited Memory-mapped two-dimensional error correction code for multi-bit error tolerance in DRAM
US11507499B2 (en) 2020-05-19 2022-11-22 Alibaba Group Holding Limited System and method for facilitating mitigation of read/write amplification in data compression
US11556277B2 (en) 2020-05-19 2023-01-17 Alibaba Group Holding Limited System and method for facilitating improved performance in ordering key-value storage with input/output stack simplification
US11263132B2 (en) 2020-06-11 2022-03-01 Alibaba Group Holding Limited Method and system for facilitating log-structure data organization
US11354200B2 (en) 2020-06-17 2022-06-07 Alibaba Group Holding Limited Method and system for facilitating data recovery and version rollback in a storage device
US11422931B2 (en) 2020-06-17 2022-08-23 Alibaba Group Holding Limited Method and system for facilitating a physically isolated storage unit for multi-tenancy virtualization
US11354233B2 (en) 2020-07-27 2022-06-07 Alibaba Group Holding Limited Method and system for facilitating fast crash recovery in a storage device
US11372774B2 (en) 2020-08-24 2022-06-28 Alibaba Group Holding Limited Method and system for a solid state drive with on-chip memory integration
US11487465B2 (en) 2020-12-11 2022-11-01 Alibaba Group Holding Limited Method and system for a local storage engine collaborating with a solid state drive controller
US11734115B2 (en) 2020-12-28 2023-08-22 Alibaba Group Holding Limited Method and system for facilitating write latency reduction in a queue depth of one scenario
US11416365B2 (en) 2020-12-30 2022-08-16 Alibaba Group Holding Limited Method and system for open NAND block detection and correction in an open-channel SSD
US11726699B2 (en) 2021-03-30 2023-08-15 Alibaba Singapore Holding Private Limited Method and system for facilitating multi-stream sequential read performance improvement with reduced read amplification
US11461173B1 (en) 2021-04-21 2022-10-04 Alibaba Singapore Holding Private Limited Method and system for facilitating efficient data compression based on error correction code and reorganization of data placement
US11476874B1 (en) 2021-05-14 2022-10-18 Alibaba Singapore Holding Private Limited Method and system for facilitating a storage server with hybrid memory for journaling and data storage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593331A (en) * 1969-01-31 1971-07-13 Ncr Co Magnetic disc calibration track with diminishing apertures
US4084201A (en) * 1975-12-02 1978-04-11 Basf Aktiengesellschaft Magnetic disc, especially a flexible magnetic disc, for track adjustment and amplitude control
IT1166458B (en) * 1980-03-11 1987-05-06 Olivetti Tecnost Spa METHOD AND DEVICE TO TEST UNIT FOR THE TREATMENT OF MAGNETIC DISCS
US4321636A (en) * 1980-03-17 1982-03-23 Magnetic Peripherals Inc. Cateye-signal intercept detector for aligning a read-write head above a computer data storage disk
DE3117911A1 (en) * 1981-05-06 1982-11-25 Siemens AG, 1000 Berlin und 8000 München Data storage medium moving in relation to a scanning head for test purposes (test object), method of aligning the scanning head by means of the test object and process for its production
US4513333A (en) * 1982-02-24 1985-04-23 Dymek Corporation Diagnostic recording
US4513331A (en) * 1982-10-12 1985-04-23 Dysan Corporation Method and apparatus for disk drive alignment

Also Published As

Publication number Publication date
EP0121590A3 (en) 1985-09-18
JPS59186118A (en) 1984-10-22
US4562494A (en) 1985-12-31
EP0121590A2 (en) 1984-10-17
ES525645A0 (en) 1984-12-01
BR8305208A (en) 1984-11-13
JPH041925B2 (en) 1992-01-14

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